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nvme_mi_mi_req_hdr-libnvme3(2)

struct nvme_mi_mi_req_hdr - MI request message header.

libnvme(9) API Manual libnvme(9)

struct nvme_mi_mi_req_hdr - MI request message header.

struct nvme_mi_mi_req_hdr {
struct nvme_mi_msg_hdr hdr;
__u8 opcode;
__u8 rsvd0[3];
__le32 cdw0, cdw1;
};

generic MI message header
opcode (OPC) for the specific MI command
reserved bytes
Management Request Doubleword 0 - command specific usage
Management Request Doubleword 1 - command specific usage

Wire format for MI request message headers, defined in section 5 of NVMe-MI.

struct nvme_mi_mi_req_hdr September 2026

nvme-cli 3.1-r1 · os · ingested 2026-10-08